What materials are used for the coupling?

We use compliant industrial steels such as Q345B/Q355 and 42CrMo.

Heavy Duty Semi Trailer Dolly Coupling 80mm Forged Steel Road Train Coupling

Name: Heavy Duty Semi Trailer Dolly Coupling 80mm Forged Steel Road Train Coupling
Brand: Shandong Weierqi Vehicle Parts Co.,Ltd
SKU: 2304835085

Shandong, ChinaShandong Weierqi Vehicle Parts Co.,Ltd

US$450.00

200 Sets

Product specifications

Description

Sample price:US$450.00/piece.Request sample

Product profile

Customization

Available

Loading Weight

40ton

Material

42CrMo

Model NO.

WEQ80

Type

Standard Coupler

Color

Customized

Certification

ECE

Warranty

12month

Weight

70kg

Transport Package

Wooden Case

Specification

1.1*1.1*1

Trademark

WEQ

Origin

China

HS Code

87169000

Production Capacity

50000sets/Year

Key features

Forged Steel Construction: Made from 42CrMo and Q345B/Q355 steel with dense internal structure free from blowholes.

Heavy Duty Capacity: Designed for road trains with a loading weight capacity of 40 tons.

Customizable Color: Color options are available for customization to meet specific requirements.

ECE Certification: Product meets ECE certification standards for international compliance.

Precision Forging: Professional hot forging ensures superior mechanical properties compared to castings.

12-Month Warranty: Comprehensive 12-month warranty covering non-artificial damage and free replacement.

OEM/ODM Services: Full customization, minor customization, and customization from samples or designs available.

ISO 9001 Certified: Strict compliance with ISO 9001 quality management system with material certificates.

Company profile

Importers and ExportersPatents AwardedQuality AssuranceProduct Certification

Shandong Weierqi Vehicle Parts Co.,Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.91h

AI-Powered supplier vetting

SummaryWelch is a professional towing-device and trailer-accessory supplier with casting, machining, manufacturing, sales, and export capabilities. It offers a broad product range, including traction devices, pintle hooks, turntables, king pins, fifth wheels, landing gear, trailer couplings, and drawbar eyes. The supplier reports ISO9001:2015 certification, documented warehouse and finished-product inspection procedures, three quality-control staff, two test-equipment units, and two R&D engineers. It provides 3D software design and multiple forms of customization, supported by CNC, drilling, boring, induction-heating, milling, painting, and shot-blasting facilities. R&D engineers provide technical support during production and after-sales service. The supplier reports domestic mainstream OEM and upfitter supply and exports to several regions, but no Fortune 500 cooperation. Financial information is present only as year labels, so financial credibility cannot be assessed.

Supplier typeThe supplier identifies itself as a professional technical supplier and conducts casting, manufacturing, sales, and export of towing devices and trailer accessories. Its listed product portfolio covers major towing-system components, indicating a specialized manufacturer rather than a general trading supplier.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate. However, product compliance certification is recorded only as “Others,” without naming a specific product standard or certificate.

After-Sales capabilityThe two technology engineers are responsible for technical support during production and after-sales service, and the supplier provides technical support tied to customer requirements. This explicitly supports after-sales technical assistance, although the breadth and response performance of the service are not stated.

R&D capabilityWelch reports multiple utility model patents, national automotive standard-drafting membership, two R&D engineers, and new-product-development responsibilities. It also provides 3D software design services, but reports no available SDK; the evidence still supports product-development and technical innovation capability.

Production capacityThe supplier operates or reports access to casting and a range of production facilities, including CNC lathes, machining centers, vertical lathes, drilling, boring, induction heating, gantry milling, painting, and shot blasting. Written warehouse and finished-product inspection procedures are reportedly followed, with three quality-control staff and two test-equipment units.

Customization capabilityWelch explicitly supports OEM/ODM customization and machining according to drawings. It offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design services.

Client casesThe supplier states that its products supply mainstream domestic OEMs and upfitters and are exported to Africa, Southeast Asia, South America, the Middle East, and other global markets. It reports no cooperation with Fortune 500 companies, so the customer evidence demonstrates market reach but not top-tier multinational customer reference strength.